ISO 7798:2017
(Main)Cross-country skis — Determination of fatigue indexes — Cyclic loading test
Cross-country skis — Determination of fatigue indexes — Cyclic loading test
ISO 7798:2017 specifies a method for the determination of the fatigue indexes of cross-country skis (i.e. the resistance of the skis to changes of bottom camber height or irreversible damage) after a bending test with cyclic loading. ISO 7798:2017 is applicable to cross-country skis with a nominal length of 160 cm to 215 cm.
Skis de fond — Détermination des indices de fatigue — Essai en flexion alternée
L'ISO 7798:2017 spécifie une méthode permettant de déterminer l'indice de fatigue des skis de fond (c'est-à-dire la résistance de ces skis aux modifications de cambre ou aux endommagements irréversibles) après un essai en flexion alternée. L'ISO 7798:2017 est applicable aux skis de fond de longueur nominale comprise entre 160 cm et 215 cm.
Tekaške smuči - Določevanje utrujenosti - Preskus s cikličnim obremenjevanjem
Ta dokument določa metodo za določevanje utrujenosti tekaških smuči (tj. odpornosti smuči na spremembe spodnje višine ukrivljenosti ali nepopravljivo škodo) po upogibnem preskusu s cikličnim obremenjevanjem.
Uporablja se za tekaške smuči z nazivno dolžino od 160 cm do 215 cm.
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INTERNATIONAL ISO
STANDARD 7798
Second edition
2017-11
Cross-country skis — Determination
of fatigue indexes — Cyclic loading test
Skis de fond — Détermination des indices de fatigue — Essai en
flexion alternée
Reference number
ISO 7798:2017(E)
©
ISO 2017
---------------------- Page: 1 ----------------------
ISO 7798:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 7798:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimens. 5
7 Temperatures for conditioning and testing . 5
8 Test procedure . 5
8.1 Measurement of original weighted bottom camber, h .
B 5
8.2 Measurement of the spring constant of the deflected ski portion, c .
F 6
8.3 Determination of stroke length, s .6
8.4 Testing . 6
8.5 Measurement of final weighted bottom camber, h′ .
B 6
8.6 Assessment of damage . 6
9 Expression of results . 7
10 Test report . 7
© ISO 2017 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 7798:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 83, Sports and other recreational facilities
and equipment, Subcommittee SC 4, Snowsports equipment.
This second edition cancels and replaces the first edition (ISO 7798:1984), which has been technically
revised.
iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 7798:2017(E)
Cross-country skis — Determination of fatigue indexes —
Cyclic loading test
1 Scope
This document specifies a method for the determination of the fatigue indexes of cross-country skis (i.e.
the resistance of the skis to changes of bottom camber height or irreversible damage) after a bending
test with cyclic loading.
It is applicable to cross-country skis with a nominal length of 160 cm to 215 cm.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7139, Cross-country skis — Determination of elastic properties
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
original weighted bottom camber
h
B
maximum distance between the bottom surface of the ski in the binding mounting area and a flat and
horizontal surface, measured under the influence of the ski’s own mass, determined prior to the test
3.2
final weighted bottom camber
h′
B
maximum distance between the bottom surface of the ski in the binding mounting area and a fl
...
SLOVENSKI STANDARD
oSIST ISO 7798:2018
01-julij-2018
7HNDãNHVPXþL'RORþHYDQMHXWUXMHQRVWL3UHVNXVVFLNOLþQLPREUHPHQMHYDQMHP
Cross-country skis -- Determination of fatigue indexes -- Cyclic loading test
Skis de fond -- Détermination des indices de fatigue -- Essai en flexion alternée
Ta slovenski standard je istoveten z: ISO 7798:2017
ICS:
97.220.20 Oprema za zimske športe Winter sports equipment
oSIST ISO 7798:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST ISO 7798:2018
---------------------- Page: 2 ----------------------
oSIST ISO 7798:2018
INTERNATIONAL ISO
STANDARD 7798
Second edition
2017-11
Cross-country skis — Determination
of fatigue indexes — Cyclic loading test
Skis de fond — Détermination des indices de fatigue — Essai en
flexion alternée
Reference number
ISO 7798:2017(E)
©
ISO 2017
---------------------- Page: 3 ----------------------
oSIST ISO 7798:2018
ISO 7798:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST ISO 7798:2018
ISO 7798:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimens. 5
7 Temperatures for conditioning and testing . 5
8 Test procedure . 5
8.1 Measurement of original weighted bottom camber, h .
B 5
8.2 Measurement of the spring constant of the deflected ski portion, c .
F 6
8.3 Determination of stroke length, s .6
8.4 Testing . 6
8.5 Measurement of final weighted bottom camber, h′ .
B 6
8.6 Assessment of damage . 6
9 Expression of results . 7
10 Test report . 7
© ISO 2017 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST ISO 7798:2018
ISO 7798:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 83, Sports and other recreational facilities
and equipment, Subcommittee SC 4, Snowsports equipment.
This second edition cancels and replaces the first edition (ISO 7798:1984), which has been technically
revised.
iv © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST ISO 7798:2018
INTERNATIONAL STANDARD ISO 7798:2017(E)
Cross-country skis — Determination of fatigue indexes —
Cyclic loading test
1 Scope
This document specifies a method for the determination of the fatigue indexes of cross-country skis (i.e.
the resistance of the skis to changes of bottom camber height or irreversible damage) after a bending
test with cyclic loading.
It is applicable to cross-country skis with a nominal length of 160 cm to 215 cm.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7139, Cross-country skis — Determination of elastic properties
3 Terms a nd definiti ons
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
...
SLOVENSKI STANDARD
SIST ISO 7798:2018
01-september-2018
1DGRPHãþD
SIST ISO 7798:1995
7HNDãNHVPXþL'RORþHYDQMHXWUXMHQRVWL3UHVNXVVFLNOLþQLPREUHPHQMHYDQMHP
Cross-country skis -- Determination of fatigue indexes -- Cyclic loading test
Skis de fond -- Détermination des indices de fatigue -- Essai en flexion alternée
Ta slovenski standard je istoveten z: ISO 7798:2017
ICS:
97.220.20 Oprema za zimske športe Winter sports equipment
SIST ISO 7798:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST ISO 7798:2018
---------------------- Page: 2 ----------------------
SIST ISO 7798:2018
INTERNATIONAL ISO
STANDARD 7798
Second edition
2017-11
Cross-country skis — Determination
of fatigue indexes — Cyclic loading test
Skis de fond — Détermination des indices de fatigue — Essai en
flexion alternée
Reference number
ISO 7798:2017(E)
©
ISO 2017
---------------------- Page: 3 ----------------------
SIST ISO 7798:2018
ISO 7798:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 7798:2018
ISO 7798:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimens. 5
7 Temperatures for conditioning and testing . 5
8 Test procedure . 5
8.1 Measurement of original weighted bottom camber, h .
B 5
8.2 Measurement of the spring constant of the deflected ski portion, c .
F 6
8.3 Determination of stroke length, s .6
8.4 Testing . 6
8.5 Measurement of final weighted bottom camber, h′ .
B 6
8.6 Assessment of damage . 6
9 Expression of results . 7
10 Test report . 7
© ISO 2017 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 7798:2018
ISO 7798:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 83, Sports and other recreational facilities
and equipment, Subcommittee SC 4, Snowsports equipment.
This second edition cancels and replaces the first edition (ISO 7798:1984), which has been technically
revised.
iv © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 7798:2018
INTERNATIONAL STANDARD ISO 7798:2017(E)
Cross-country skis — Determination of fatigue indexes —
Cyclic loading test
1 Scope
This document specifies a method for the determination of the fatigue indexes of cross-country skis (i.e.
the resistance of the skis to changes of bottom camber height or irreversible damage) after a bending
test with cyclic loading.
It is applicable to cross-country skis with a nominal length of 160 cm to 215 cm.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7139, Cross-country skis — Determination of elastic properties
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing plat
...
NORME ISO
INTERNATIONALE 7798
Deuxième édition
2017-11
Skis de fond — Détermination des
indices de fatigue — Essai en flexion
alternée
Cross-country skis — Determination of fatigue indexes — Cyclic
loading test
Numéro de référence
ISO 7798:2017(F)
©
ISO 2017
---------------------- Page: 1 ----------------------
ISO 7798:2017(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2017
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en oeuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Tél.: +41 22 749 01 11
Fax: +41 22 749 09 47
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2017 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 7798:2017(F)
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe . 2
5 Appareillage . 2
6 Éprouvettes . 5
7 Températures de conditionnement et d’essai . 5
8 Mode opératoire d’essai. 5
8.1 Mesurage du cambre initial, h .
B 5
8.2 Mesurage de la raideur en flexion de la partie fléchie du ski, c .
F 6
8.3 Détermination de l’amplitude de flexion, s .6
8.4 Essai . 6
8.5 Mesurage du cambre final, h′ .
B 6
8.6 Évaluation des dommages. 6
9 Expression des résultats. 7
10 Rapport d’essai . 7
© ISO 2017 – Tous droits réservés iii
---------------------- Page: 3 ----------------------
ISO 7798:2017(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes
nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est
en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.
L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents
critères d’approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/ directives).
L’attention est attirée sur le fait que certains des éléments du présent document peuvent faire l’objet de
droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l’élaboration du document sont indiqués dans l’Introduction et/ou dans la liste des déclarations de
brevets reçues par l’ISO (voir www .iso .org/ brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion
de l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir le lien suivant: www .iso .org/ iso/ fr/ avant -propos .html.
Le présent document a été élaboré par le comité technique ISO/TC 83, Matériel et équipements de sports
et autres activités de loisirs, sous-comité SC 4, Équipements de sport de neige.
Cette deuxième édition annule et remplace la première édition (ISO 7798:1984), qui a fait l’objet d’une
révision technique.
iv © ISO 2017 – Tous droits réservés
---------------------- Page: 4 ----------------------
NORME INTERNATIONALE ISO 7798:2017(F)
Skis de fond — Détermination des indices de fatigue —
Essai en flexion alternée
1 Domaine d’application
Le présent document spécifie une méthode permettant de déterminer l’indice de fatigue des skis de
fond (c’est-à-dire la résistance de ces skis aux modifications de cambre ou aux endommagements
irréversibles) après un essai en flexion alternée.
Il est applicable aux skis de fond de longueur nominale comprise entre 160 cm et 215 cm.
2 Références normatives
Les documents suivants cités dans le texte constituent, pour tout ou partie de leur contenu, des
exigences du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les
références non datées, la dernière édition du document de référence s’applique (y compris les éventuels
amendements).
ISO 7139, Skis de fond — Détermination des caractéristiques élastiques
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions suivants s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en
normalisation, consultables aux adresses suivantes:
— IEC Electropedia: disponible à l’adresse http:// www .electropedia .org/
— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org ./ obp
3.1
cambre initial
h
B
distance maximale entre la face inférieure du ski, au niveau de la zone de montage de la fixation, et une
surface plane et horizontale, mesurée avant l’essai sur le ski reposant sous l’effet de son propre poids
3.2
cambre final
h′
B
distance maximale entre la face inférieure du
...
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